To replace a refrigerator water filter, start with the part number your refrigerator’s maker names, then look up the exact cartridge you plan to buy in a certifier’s listing. A brand-name (OEM) cartridge and a generic one sold “for” the same part number can carry very different certified claims. In the listings below, LG’s LT800P is certified for 11 health-effects claims under NSF/ANSI 53, while most generic LT800P-style rows on one manufacturer’s certificate list six, including one, endrin, that LG’s row doesn’t. Certification follows the exact cartridge model in the listing, not the part number on the box.

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Find the right part number first

  • Use your refrigerator’s model number. LG’s filter page asks for your refrigerator model number to match a filter, and Samsung says only Samsung Genuine Filters are designed to work with its refrigerators. Those are the makers’ own fit claims.
  • Expect several part numbers for one cartridge. LG lists the LT800P under part numbers ADQ73613408 and ADQ73613401. NSF lists Samsung’s HAF-QIN/EXP together with element number DA97-17376B.
  • Follow the maker’s schedule. The EPA says refrigerator filters should be replaced based on the manufacturer’s instructions. LG rates the LT800P for 6 months or 200 gallons.

OEM vs generic: what the listings show

Cartridge Certifier and standards Listed capacity and flow NSF/ANSI 53 claims NSF/ANSI 401 claims
LG LT800P NSF: 42, 53 200 gal, 0.5 gpm 11, incl. lead, cyst, asbestos Not listed
Samsung HAF-QIN/EXP NSF: 42, 53, 401 316 gal, 0.4 gpm 17, incl. lead, cyst, asbestos 15
everydrop Filter 1 (EDR1RXD1) NSF: 42, 53, 401 200 gal, 0.50 gpm (P8WB2L row) 19, incl. lead, cyst, VOCs 10, incl. microplastics
Generic LT800P-style, model EFF-6020S IAPMO R&T: 42, 53, 401 on some rows 200 gal, 0.5 gpm 6 on most rows, 17 or 18 on others 6 to 16 on some rows

From NSF’s listings for LG Electronics, Samsung and Whirlpool and IAPMO R&T’s certificates for Qingdao Ecopure Filter Co., checked October 9, 2026. Counts are the claims listed for that row.

The OEM cartridges

  • LG LT800P . NSF lists it under NSF/ANSI 42 for chlorine, Class I particulate, and taste and odor, and under NSF/ANSI 53 for 2,4-D, asbestos, atrazine, benzene, carbofuran, cyst, lead, lindane, mercury, p-dichlorobenzene and toxaphene. LG’s page markets it as “NSF42 and NSF53” and says installation takes a simple twist with no tools.
  • Samsung HAF-QIN/EXP (the Amazon link is the 2-pack, HAF-QIN-2P/EXP). NSF lists it at 316 gallons and 0.4 gpm, with chlorine, Class I particulate, and taste and odor under NSF/ANSI 42, 17 claims including lead, cyst and asbestos under NSF/ANSI 53, and 15 compounds including bisphenol A and ibuprofen under NSF/ANSI 401.
  • everydrop Filter 1 (EDR1RXD1) . NSF lists it as the replacement element for Whirlpool’s P8WB2L at 200 gallons and 0.50 gpm, with 19 NSF/ANSI 53 claims including lead, cyst, asbestos and VOCs, and 10 NSF/ANSI 401 claims including microplastics. NSF also lists the same cartridge at 100 gallons under another Whirlpool model number (W11602565, which NSF notes has no performance indicator device), so rated capacity can depend on the model it’s listed with.

None of these three OEM rows lists a PFOA or PFOS claim. The EPA says to look for an NSF/ANSI 53 or NSF/ANSI 58 PFAS claim if that’s your concern.

Generic replacements

IAPMO R&T’s certificates for one manufacturer, Qingdao Ecopure Filter Co., cover more than a dozen brand names, including store brands. A single base model, EFF-6020S, appears under eight brand names, and most of the part numbers on those rows reference LG’s LT800P. The rows don’t all carry the same claims:

  • NSF/ANSI 53: eight of the 12 EFF-6020S rows list six claims (lead, endrin, cyst, benzene, carbofuran and mercury). The others list 17 or 18.
  • NSF/ANSI 42: the rows list chlorine and taste and odor. One row lists only Class I particulate reduction, so no single row lists all three claims that LG’s listing shows.
  • NSF/ANSI 401: some rows list six compounds, others 15 or 16, and several brand rows have no NSF/ANSI 401 entry on these certificates.

Compared with LG’s own listing, the six-claim rows add endrin but leave out asbestos, atrazine, lindane, p-dichlorobenzene, 2,4-D and toxaphene. A generic can be a reasonable choice, but only the listing for its exact brand and part number tells you which claims you’re getting.

How to choose a replacement

  1. Confirm the fit. Match the part number your refrigerator maker names. A generic sold “for” an OEM part number is making its own fit claim.
  2. Look up the exact cartridge. Search the certifier’s directory for the brand and part number on the box. The EPA lists directories for NSF, IAPMO R&T, WQA, UL and CSA Group, and says certification bodies require their mark and a statement indicating the standard the filter was tested against.
  3. Check the claims you care about. For lead, the EPA says to look for NSF/ANSI 53 with a lead reduction claim and also NSF/ANSI 42 for Class I particulate reduction. Lead claims to 5 parts per billion or less can be on the performance data sheet or in the certifier’s listing.
  4. Compare capacity and flow. The listing gives a rated service cycle in gallons and a flow rate. Replace by the maker’s schedule; the EPA says unmaintained systems may make water quality worse.

A refrigerator cartridge treats only the fridge’s water and ice. For other taps, see our water filter types comparison , and for the fridge-or-whole-house question, whole-house vs refrigerator water filters . Our certification guide shows how to read a listing.

Sources

Listings and product pages were checked on October 9, 2026. Better Water Guide has not tested these cartridges; this is desk research from certifier listings and maker pages.